Shares of “Sprint (S) and T-Mobile’s merger partner MetroPCS (PCS) fell in New York as the mobile-phone operators said they must delay introduction of Samsung’s Galaxy S4 due to inventory challenges at the Korean electronics manufacturer, which Samsung attributed to extremely high demand for the product,” Andrea Tse| reports for TheStreet.

“Best Buy (BBY), which just launched Samsung kiosks, or ‘experience shops’ at its stores, was shedding 1.49% to $23.77,” Tse| reports. “T-Mobile had originally planned to make the Galaxy S4 available on T-Mobile.com on Wednesday, but due to the inventory delays, it now expects online availability to begin on Monday, Apr. 29. Due to the inventory challenges, Sprint expects a slight delay with its full product launch.”